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Merge branch '3095-detect-padding-in-struct_msghdr' into 'main'

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Instead of detecting MUSL libc, detect padding in struct msghdr

Closes #3095

See merge request isc-projects/bind9!5718
This commit is contained in:
Ondřej Surý 2022-01-13 23:26:54 +00:00
commit 8d95c96b51
1 changed files with 9 additions and 3 deletions
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12
configure.ac
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@ -552,9 +552,15 @@ PKG_CHECK_MODULES([LIBUV], [libuv >= 1.0.0], [],
[AC_MSG_ERROR([libuv not found])])
# libuv recvmmsg support
AC_CHECK_DECLS([UV_UDP_RECVMMSG, UV_UDP_MMSG_FREE, UV_UDP_MMSG_CHUNK], [], [], [[#include <uv.h>]])
AS_CASE([$host],
[*-musl],[AC_DEFINE([HAVE_DECL_UV_UDP_RECVMMSG], [0], [Disable recvmmsg support on systems with MUSL glibc])])
AC_CHECK_DECLS([UV_UDP_MMSG_FREE, UV_UDP_MMSG_CHUNK], [], [], [[#include <uv.h>]])
AC_MSG_CHECKING([whether struct msghdr uses padding for alignment])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/socket.h>],
[const struct msghdr h = { .__pad1 = 0, .__pad2 = 0 };])],
[AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_DECL_UV_UDP_RECVMMSG],
[0], [Disable recvmmsg support on systems with MUSL glibc])],
[AC_MSG_RESULT([no])
AC_CHECK_DECLS([UV_UDP_RECVMMSG], [], [], [[#include <uv.h>]])])
# [pairwise: --enable-doh --with-libnghttp2=auto, --enable-doh --with-libnghttp2=yes, --disable-doh]
AC_ARG_ENABLE([doh],